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MS-DRG v44.0 · MDC 09: Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast

594 — Skin Ulcers without CC/MCC

This DRG is subject to the post-acute care transfer policy. Source: CMS MS-DRG v44.0 and FY2027 IPPS final rule. Page updated September 29, 2026.
Relative weight
0.7801
Geometric mean LOS
3.2 days
Arithmetic mean LOS
4 days
Type
Medical

About MS-DRG 594

MS-DRG 594, Skin Ulcers without CC/MCC, is a medical DRG in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.

Its FY2027 relative weight is 0.7801, so Medicare's base payment for this DRG is about 0.78 times the average inpatient case (below average), before hospital-specific adjustments. The geometric mean length of stay is 3.2 days and the arithmetic mean is 4 days.

It belongs to a 3-level severity family: DRG 592 (with MCC, weight 1.9101), DRG 593 (with CC, weight 1.1575) and DRG 594 (without CC/MCC, weight 0.7801). The highest-severity level carries 2.4 times the weight of the lowest, which is why documenting CC and MCC conditions matters.

It is subject to Medicare's post-acute care transfer policy, so payment can be reduced when a patient with a shorter-than-average stay is discharged to a skilled nursing facility, home health or another post-acute setting.

479 ICD-10-CM diagnosis codes are part of this DRG's grouping logic; they are listed below.

ICD-10-CM codes that group to DRG 594 (479)

Chapter 12: Diseases of the skin and subcutaneous tissue

Common questions about DRG 594

What is the relative weight of DRG 594?

0.7801 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.

What is the average length of stay for DRG 594?

The geometric mean length of stay is 3.2 days; the arithmetic mean is 4 days.

Is DRG 594 medical or surgical?

DRG 594 is a medical DRG.